# How do you solve #- x+y=6# and #-2x+y=7# using matrices?

##### 1 Answer

Feb 9, 2016

#### Answer:

#### Explanation:

As the equations are already in the form

Now by row operations change

Changed row 1 By subtracting row 2 from row 1

Changed row 2 By adding 2

From right column we obtain the solution as